4 Burner CO2 Generator

Features

• Four, eight or ten preinstalled liquid propane or natural gas burners

• Includes gas regulator, 12’ hose and hanging hardware

• Electronic ignition provides reliable starts

• Built-in safety tip-over switch

Specifications

 Warning

• Failure to read and understand these instructions before installing or operating this product could result in personal injury or property damage.

• Installation and connection of gas lines must be completed in compliance with local and national regulations.

• Do not store gasoline or other flammable gases or liquids near the unit.

• Keep objects away from the Generator as the electrodes produce sparks.

• Install the Generator in an adequately ventilated area. Without adequate ventilation, CO₂ can reach toxic levels. Levels above 2500 ppm can cause headaches and other symptoms, and levels above 5000 ppm are toxic.

• Do not use the standard Generator at altitudes higher than 4,500 ft above sea level if the burners are producing yellow flame.

• The Generator is designed to be operated only while hanging. Do not operate the Generator on a table or other surface because the unit requires unrestricted airflow through the bottom of the unit.

• Do not turn on the Generator without reading the “Start-up Procedure” section.

Installation

1. Use the provided hardware to securely hang the Generator from an overhead support, such as a ceiling beam. Leave at least 20” between the unit and the wall, ceiling, or other surfaces or objects. Install the screw hooks into the overhead support, then use the carabiner hooks to attach the chain to the unit and the screw hooks.

2. Verify the Generator is hanging level. The unit has a built-in tip-over switch, a pendulum-like safety feature that will turn off the gas supply to the burners if the unit tips over, falls or isn’t level.

3. Connect the provided gas regulator to the liquid propane or natural gas supply. The gas supply to the Generator must be regulated to a very low pressure (11” WC or ½ psi for liquid propane, and 4.5” WC or ¼ psi for natural gas).

4. Use a wrench to connect one end of the included 12’ hose to the flare fitting on the unit and the other end to the provided gas regulator.

5. To verify the connections are secure, check for leaks by spraying a soap solution onto the gas connection fittings with the shut-off valve in open position. If bubbles appear, close the shut-off valve, retighten the connection and repeat

the process.

LED Indicators

There are four Two indicators on the side of the Generator.

• The GREEN LED on the switch illuminates when the power supply is connected and the unit is turned on.

• The RED LED flashes to indicate the ignition control module has shut off the solenoid valves and the unit will not operate until it has been disconnected from and reconnected to power.

Start-up Procedure

1. Before initiating the start-up procedure, verify the power switch is off and the Generator is not plugged in.

2. Pressurize the gas lines by opening the shut-off valves on the gas supply. Test for gas leaks, especially if this is the first time the unit has been used.

3. Plug the Generator’s 12-VDC power supply into a 100-240V power source.

4. Connect the other end of the 12-VDC power supply cord to the inlet jack on the Generator.

5. Turn the power switch on. The GREEN LED on the switch will illuminate.

6. The ignition control module will attempt to ignite the burners for approximately 10 seconds.

7. The burners may not ignite initially if this is the first time the unit is being used. After 5 seconds, the unit will attempt to ignite the burners for 10 seconds. The unit will continue until the burner ignites or for a maximum of three attempts.

8. If three unsuccessful attempts are made, the module will lock out, RED LED will flash and buzzer sounds. Turn off the Generator, close the shut-off valve, and wait 5 minutes to allow the gas to dissipate before attempting to restart the unit.

9. When the burners have ignited, look under the unit to confirm the flame is blue and steady, resembling a flower or star.

 Warning

• Immediately turn off the unit if the flame appears yellow, excessively large, or weak and lazy. High gas pressure or incorrect gas type may lead to yellow or excessively high flames. Low gas pressure may cause small or weak blue flames.

• After the Generator has been tested with all burners operating, connect the Generator to a controller or timer that will control the frequency and duration of the unit’s operation.

Modifying CO₂ Output

It is strongly recommended to use a controller or timing device to properly manage the output of the Generator. If this is not possible, the Generator’s CO2 and heat output can be modified by using the provided brass pipe plugs to reduce the number of active burners. Additional plugs may be purchased separately. The Specifications table shows the size of the growing area that is appropriate for each model as well as how much CO2 and heat are produced at maximum capacity. Each burner replaced with a brass pipe plug will reduce the Generator’s output by 2.65 cu ft/hr of CO2 and 2,263 BTU for a standard liquid propane unit, 2.7 cu ft/hr of CO2 and 2,767 BTU for a standard natural gas unit, 2.1 cu ft/hr of CO2 and 1,788 BTU for a high altitude liquid propane unit, and 2.4 cu ft/hr of CO2 and 2,455 BTU for a high altitude natural gas unit.

The CGLP-10 and CGNG-10 feature the ability to vary CO2 output with the flip of a switch. The main power switch activates

the two burners nearest the electrodes, and two additional selector switches independently activate two separate banks of four burners each. Brass pipe plugs are also provided for further modification. To determine the appropriate number of burners to activate for the growing area, divide the size of the growing area (in cubic feet) by 1,000. For example: Activate six burners in a growing area of 6,000 cu ft.

Electronic Ignition Control Module

The Generator’s electronic ignition control module produces a spark that lights the burners, eliminating the need for an open pilot flame and providing consistent, controlled starts. The module controls solenoid valves.

High Altitude Generators

High Altitude Generators are specially designed to operate and compensate for reduced oxygen levels at altitudes higher than 4,500 ft above sea level. BTU and CO₂ outputs will be reduced because there is less oxygen in the air at high altitudes

A High Altitude Generator may be operated at altitudes as low as 2,500 ft above sea level, but the unit should be tested before use to ensure all burners ignite correctly and consistently.

FAQ

• I smell gas around the generator, is that normal?

No. Turn off the gas supply immediately. Do not turn on any electrical devices. Ventilate the area and leave until the gas smell dissipates. Turn the gas supply back on, then determine where the leak is by spraying soapy water on the gas connections. Retighten the connections where bubbles appear.

• What does a flashing “Lock Out” RED LED mean?

The gas supply may have been interrupted. “Lock Out” is a safety feature activated when the pilot does not ignite after three attempts. When the problem has been fixed, reset the “Lock Out” by turning the power off for 5 seconds and then back on.

• Should the Generator produce buzzing or sparking noises?

The Generator will produce buzzing or sparking noises only when the unit is attempting to ignite the burners.

• What should the flames look like?

The flames should burn clean and blue, resembling a flower or star. Do not operate the generator if the flame is yellow, excessively large, or weak and lazy.

• Does it matter which burners are replaced with the pipe plug?

The burner nearest the electrodes must remain in place. Remove and replace burners starting with the burner farthest away from the electrodes.

Troubleshooting

• Why isn’t the Generator working and why aren’t the LEDs illuminating even though the power is connected?

The tip-over switch may have been triggered. To reset, tilt the unit to the side and listen for a clicking noise. Ensure the unit is level to avoid triggering the switch.

• Why won’t the burners ignite even though the unit is attempting to ignite them?

Verify the unit is generating a spark and the burner closest to the electrodes is active. Ensure there are no kinks or twists in the gas line and the gas supply is adequate. Turn off the gas regulator for 30 seconds, then try again.

• Why isn’t the CO₂ level increasing to the desired ppm?

Check for air leakage in the growing area. Do not operate exhaust fans while CO₂ is being produced.

• What if the growing area gets too humid or hot?

Reduce the settings on the controller or timing device. If an output control is not being used, burners can be removed and replaced with the provided brass pipe plugs.